*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root { --brand-primary: #1a3a5c; --brand-secondary: #2d6a9f; --brand-accent: #e8b830; --brand-light: #f0f4f8; --brand-dark: #0f1e2e; --text-primary: #1a1a2e; --text-secondary: #4a4a5a; --bg-body: #ffffff; --bg-card: #ffffff; --bg-glass: rgba(255,255,255,0.7); --shadow-sm: 0 2px 8px rgba(0,0,0,0.06); --shadow-md: 0 4px 20px rgba(0,0,0,0.08); --shadow-lg: 0 8px 40px rgba(0,0,0,0.12); --radius-sm: 8px; --radius-md: 16px; --radius-lg: 24px; --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1); --max-width: 1200px; --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif; }
.dark-mode { --bg-body: #0f1e2e; --bg-card: #1a2a3e; --bg-glass: rgba(15,30,46,0.8); --text-primary: #e8edf2; --text-secondary: #a0b0c0; --shadow-sm: 0 2px 8px rgba(0,0,0,0.3); --shadow-md: 0 4px 20px rgba(0,0,0,0.4); --shadow-lg: 0 8px 40px rgba(0,0,0,0.5); --brand-light: #1a2a3e; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--bg-body); color: var(--text-primary); line-height: 1.7; -webkit-font-smoothing: antialiased; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
header { position: sticky; top: 0; z-index: 1000; background: var(--bg-glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255,255,255,0.1); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; }
.logo { font-size: 1.6rem; font-weight: 800; color: var(--brand-primary); text-decoration: none; display: flex; align-items: center; gap: 8px; }
.logo svg { width: 36px; height: 36px; }
.logo span { background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
nav { display: flex; align-items: center; gap: 24px; }
nav a { color: var(--text-primary); text-decoration: none; font-weight: 500; font-size: 0.95rem; transition: color var(--transition); position: relative; padding: 4px 0; }
nav a::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--brand-accent); transition: width var(--transition); }
nav a:hover::after, nav a.active::after { width: 100%; }
nav a:hover { color: var(--brand-secondary); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle { background: none; border: none; cursor: pointer; font-size: 1.4rem; color: var(--text-primary); padding: 4px; border-radius: 50%; transition: background var(--transition); }
.theme-toggle:hover { background: rgba(0,0,0,0.05); }
.menu-toggle { display: none; background: none; border: none; cursor: pointer; font-size: 1.6rem; color: var(--text-primary); }
.mobile-menu { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--bg-glass); backdrop-filter: blur(20px); z-index: 999; flex-direction: column; align-items: center; justify-content: center; gap: 24px; }
.mobile-menu.open { display: flex; }
.mobile-menu a { font-size: 1.4rem; color: var(--text-primary); text-decoration: none; font-weight: 600; }
.mobile-menu .close-btn { position: absolute; top: 20px; right: 20px; font-size: 2rem; background: none; border: none; color: var(--text-primary); cursor: pointer; }
.hero { position: relative; overflow: hidden; padding: 80px 0 100px; background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%); color: #fff; }
.hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 20% 50%, rgba(232,184,48,0.15) 0%, transparent 60%); }
.hero .container { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-content h1 { font-size: 3.2rem; font-weight: 800; line-height: 1.2; margin-bottom: 20px; }
.hero-content p { font-size: 1.15rem; opacity: 0.9; margin-bottom: 32px; max-width: 540px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: 50px; font-weight: 600; font-size: 1rem; text-decoration: none; transition: all var(--transition); border: none; cursor: pointer; }
.btn-primary { background: var(--brand-accent); color: var(--brand-dark); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(232,184,48,0.4); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.3); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; }
.hero-visual { display: flex; justify-content: center; align-items: center; }
.hero-visual svg { width: 100%; max-width: 480px; height: auto; filter: drop-shadow(0 20px 60px rgba(0,0,0,0.3)); }
.banner-dots { display: flex; justify-content: center; gap: 10px; margin-top: 40px; }
.banner-dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.3); cursor: pointer; transition: all var(--transition); }
.banner-dot.active { background: var(--brand-accent); transform: scale(1.2); }
section { padding: 80px 0; }
.section-title { text-align: center; margin-bottom: 56px; }
.section-title h2 { font-size: 2.4rem; font-weight: 700; color: var(--text-primary); margin-bottom: 12px; }
.section-title p { color: var(--text-secondary); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
.section-title .accent-line { width: 60px; height: 4px; background: var(--brand-accent); margin: 16px auto 0; border-radius: 2px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.card { background: var(--bg-card); border-radius: var(--radius-md); padding: 32px 24px; box-shadow: var(--shadow-sm); transition: all var(--transition); border: 1px solid rgba(0,0,0,0.04); }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card-icon { width: 48px; height: 48px; margin-bottom: 16px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; }
.card h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; }
.card p { color: var(--text-secondary); font-size: 0.95rem; }
.stats { background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary)); color: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item h3 { font-size: 2.8rem; font-weight: 800; }
.stat-item p { opacity: 0.8; font-size: 1rem; }
.faq-item { border-bottom: 1px solid rgba(0,0,0,0.06); padding: 16px 0; cursor: pointer; }
.faq-question { display: flex; justify-content: space-between; align-items: center; font-weight: 600; font-size: 1.05rem; }
.faq-question .icon { transition: transform var(--transition); font-size: 1.2rem; }
.faq-item.open .faq-question .icon { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; padding-top: 0; color: var(--text-secondary); }
.faq-item.open .faq-answer { max-height: 300px; padding-top: 12px; }
footer { background: var(--brand-dark); color: rgba(255,255,255,0.8); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-col h4 { color: #fff; font-size: 1.1rem; margin-bottom: 16px; }
.footer-col a { color: rgba(255,255,255,0.7); text-decoration: none; display: block; margin-bottom: 8px; font-size: 0.9rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--brand-accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; font-size: 0.85rem; }
.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 48px; height: 48px; background: var(--brand-primary); color: #fff; border: none; border-radius: 50%; font-size: 1.4rem; cursor: pointer; box-shadow: var(--shadow-md); opacity: 0; visibility: hidden; transition: all var(--transition); z-index: 100; }
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-4px); }
.search-bar { display: flex; max-width: 400px; margin: 0 auto 40px; }
.search-bar input { flex: 1; padding: 12px 20px; border: 1px solid rgba(0,0,0,0.1); border-radius: 50px 0 0 50px; outline: none; font-size: 1rem; background: var(--bg-card); color: var(--text-primary); }
.search-bar button { padding: 12px 24px; background: var(--brand-primary); color: #fff; border: none; border-radius: 0 50px 50px 0; cursor: pointer; font-weight: 600; }
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
@media (max-width: 1024px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; } .hero-content p { margin: 0 auto 32px; } .hero-buttons { justify-content: center; } .stats-grid { grid-template-columns: repeat(2, 1fr); } .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px) { nav { display: none; } .menu-toggle { display: block; } .hero-content h1 { font-size: 2.2rem; } .section-title h2 { font-size: 1.8rem; } .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; } .stat-item h3 { font-size: 2rem; } .footer-grid { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .hero { padding: 60px 0 80px; } .hero-content h1 { font-size: 1.8rem; } .btn { padding: 12px 24px; font-size: 0.9rem; } }
.dark-mode .card { border-color: rgba(255,255,255,0.06); }
.dark-mode .faq-item { border-color: rgba(255,255,255,0.08); }
.dark-mode .search-bar input { border-color: rgba(255,255,255,0.1); }
.dark-mode .hero { background: linear-gradient(135deg, #0a1a2a, #1a3a5c); }
.dark-mode .stats { background: linear-gradient(135deg, #0a1a2a, #1a3a5c); }